JPS5547687A - Preparaton of oxazoline derivative - Google Patents
Preparaton of oxazoline derivativeInfo
- Publication number
- JPS5547687A JPS5547687A JP12102578A JP12102578A JPS5547687A JP S5547687 A JPS5547687 A JP S5547687A JP 12102578 A JP12102578 A JP 12102578A JP 12102578 A JP12102578 A JP 12102578A JP S5547687 A JPS5547687 A JP S5547687A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- acid
- formula
- chloramine
- preparaton
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Abstract
PURPOSE: To obtain the title compound useful as an intermediate for the synthesis of 1-oxadethiacephalosporin compounds readily, by reacting safe and inexpensive chloramine-T and an acid of specific pH with a penicillin derivative.
CONSTITUTION: One mole of a penicillin derivative (P) of formula I: (R1 and R2 are alkyl, aryl or aralkyl groups) is reacted with 1W10 moles of a compound (c) of formula II: (R is lower alkyl group; n is an integer 0W3; M is alkali metal; X is halogen), e.g. chloramine-T, B, or X, and an acid, e.g. acetic, hydrochloric, or sulfuric acid, at a pH of 3W8, in an inert solvent, e.g. acetone, to give a compound of formula III. The compound (c) and the acid are added in portions alternately to maintain the pH at a specific value, which is necessary for preventing the decomposition of compound (p) and accelerating e reaction.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12102578A JPS5547687A (en) | 1978-09-30 | 1978-09-30 | Preparaton of oxazoline derivative |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12102578A JPS5547687A (en) | 1978-09-30 | 1978-09-30 | Preparaton of oxazoline derivative |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5547687A true JPS5547687A (en) | 1980-04-04 |
Family
ID=14800940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12102578A Pending JPS5547687A (en) | 1978-09-30 | 1978-09-30 | Preparaton of oxazoline derivative |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5547687A (en) |
-
1978
- 1978-09-30 JP JP12102578A patent/JPS5547687A/en active Pending
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